From fac8d3b5939ff0b8dfc1f1e90598c44527d687fd Mon Sep 17 00:00:00 2001 From: Pim van Pelt <pim@ipng.nl> Date: Tue, 28 Nov 2017 01:15:00 +0100 Subject: [PATCH] Add soldering requirements --- README.md | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/README.md b/README.md index 3e0b5d2..25b042d 100644 --- a/README.md +++ b/README.md @@ -23,7 +23,7 @@ a great platform to showcase the power of Mongoose OS. ### Hardware: Observations The Huzzah32 uses its SPI bus to communicate with the touch sensor and the -TFT screen. It's `MOSI`, `MISO` and `SCLK` pins are shared with the other +TFT screen. Its `MOSI`, `MISO` and `SCLK` pins are shared with the other devices, and it selects which slave device to communicate with by means of three `CS` pins. @@ -44,7 +44,15 @@ Peculiarities of the hardware setup: is connected to USB. Adafruit have helpfully connected the battery output to an ADC pin (A13 / GPIO35) using a 1:1 voltage divider (so a full LiPo battery at 4.2V will read out at 2.1V on the ADC channel. - + +#### Soldering Requirements + +The `LITE` and `IRQ` pads on the TFT Featherwing have to be soldered to +connect them to the Huzzah32: + +* Solder the `IRQ` pad to pin 23. +* Solder the `LITE` pad to pin 22. + ### General Design To showcase the idiomatic use of Mongoose OS, we will to do the following: